EP 0238054 A3 19880601 - MOLTEN METAL GAS ANALYSIS
Title (en)
MOLTEN METAL GAS ANALYSIS
Publication
Application
Priority
GB 8606766 A 19860319
Abstract (en)
[origin: EP0238054A2] This invention provides apparatus for determining the concentration of a selected gas, e.g. hydrogen, nitrogen or oxygen, in molten metal of known temperature and composition (other than dissolved gases). A tubular probe is provided having an outer sheath impermeable to the metal, constructed from a gas permeable refractory or cermet (1) for immersion in the melt, means (3) for passing a gas of known composition through the probe such as to realise an equilibrium condition, via the sheath, with the gas dissolved in the melt and means for analysing the equilibrated gas collected from the probe whereby to determine the concentration of the selected gas in said melt.
IPC 1-7
IPC 8 full level
G01N 27/04 (2006.01); G01N 1/22 (2006.01); G01N 33/20 (2006.01); G01N 1/12 (2006.01)
CPC (source: EP US)
G01N 1/22 (2013.01 - EP US); G01N 33/2025 (2018.12 - EP US); G01N 1/125 (2013.01 - EP US)
Citation (search report)
- [X] US 4454748 A 19840619 - TERAI SHIRO [JP], et al
- [A] US 2861450 A 19581125 - ERIC RANSLEY CHARLES
- [A] GB 684865 A 19521224 - BRITISH ALUMINIUM CO LTD
- [XP] EP 0212371 A2 19870304 - ALUMINUM CO OF AMERICA [US]
Designated contracting state (EPC)
AT BE DE ES FR IT LU NL SE
DOCDB simple family (publication)
EP 0238054 A2 19870923; EP 0238054 A3 19880601; EP 0238054 B1 19901227; AT E59475 T1 19910115; DE 3766992 D1 19910207; ES 2020521 B3 19910816; GB 2188417 A 19870930; GB 2188417 B 19900221; GB 8606766 D0 19860423; JP S62229058 A 19871007; US 4757707 A 19880719
DOCDB simple family (application)
EP 87103946 A 19870318; AT 87103946 T 19870318; DE 3766992 T 19870318; ES 87103946 T 19870318; GB 8606766 A 19860319; JP 6551087 A 19870319; US 2669287 A 19870317